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APPCIVDI~ A <br />The field study for this slope stability study was performed on February 3, 1999. The field <br />study consisted of logging and sampling the soils encountered in four (4) test borings. The <br />approximate locations of the test borings are shown on Figure 2. TIJe log of the soils encountered <br />in the test borings are presented on 1=igwes A2 through A5. <br />The test borings were logged by Lambert and Associates and samples of significant soil types <br />1 were obtained. "fhe samples were obtained from the test borings using a Modified California <br />Darrel sampler and bulk dis[ut'bed samples were obtained. Peneu'ation blow counts were <br />determined using a 140 pound hammer free falling 30 inches. The blow counts are presented on <br />J the logs of the test borings such as 5/6 where 5 blows with the hanmier were required to drive <br />the sampler 6 inches. <br />The engineering field description and major soil classification are based on ow' interpretation of <br />the materials encountered and are prepared according to the Unified Soil Classifcation System, <br />ASTM D2488. The description and classification which appear on the test boring log is intended <br />l to be that which most accurately describes a given interval of the test boring (fi-equently an interval <br />J of several feet). Occasionally discrepancies occur in the Unified Soil Classification System <br />nomenclature between an interval of the soil lo~~ and a particular sample in the interval. For <br />1 example, an interval on the test boring log may be identified as a silty sand (SM) while one sample <br />taken within the interval may have individually been identified as a sandy silt (ML). 'I-his <br />discrepancy is frequently allowed to remain to emphasize the occurrence of local textural <br />variations in the interval. <br />The stratification lines presented on the lo~~s are intended (u present our interpretation of the <br />subsurface conditions encountered in the test borings. The stratification lines represent the <br />l approximate boundary behveen soil types and the transition may be gradual. <br />J <br />i~:lllZliP1'1 :lull _~_~~~`0`171 I~lIPS <br />CONSULTING GEOTECHNI CAL ENGINEERS <br />AHD t1ATGRIALS TESTING <br />